Hi cornelius_b,
We are at the same stage in Sweden. Trying to start something missing here. And just getting all permits and finding a place to begin this journey is pretty dxmn hard to be honest.
Not sure in what country you are, but up here its an endless discussion with different municipal offices and regional government institutions. It really puts us up to the test.
For us, the floor plans are the easy parts, same goes for production equipment.
I would say, your floor plan, looks nice
We are forced to have a smaller place to produce in, and getting a tasting room, well that is just not worth the pain in more permits here.